| TwinRock Global | Central | - | Security Mgt | CSO | Marsiling |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Marsiling |
| Inhouse Employer | Central | Mix-Development | Security Mgt | CSO | Marsiling |
| Star Security Services | Island Wide | - | Security Mgt | SS | Clementi |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | SS | Clementi |
| TwinRock Global | Central | - | Security Mgt | SS | Clementi |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Boon Lay |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSS | Woodlands |
| Hotel Grand Central | Central | Hotel | Security Mgt | SO | Woodlands |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSO | Hougang |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Choa Chu Kang |
| TwinRock Global | Central | - | Security Mgt | CSO | Pasir Ris |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | CSO | Pasir Ris |
| Acestes Pte Ltd | Central | - | Security Mgt | CSO | Pasir Ris |
| Inhouse Employer | Central | Mix-Development | Security Mgt | CSO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | SSO | Boon Lay |
| TwinRock Global | Central | - | Security Mgt | SSS | Tiong Bahru |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Tiong Bahru |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | SSS | Tiong Bahru |
| Star Security Services | Island Wide | - | Security Mgt | SSO | Hougang |
| Star Security Services | Island Wide | - | Security Mgt | SSO | Hougang |
| Star Security Services | Island Wide | - | Security Mgt | SS | Bukit Batok |
| Acestes Pte Ltd | Central | - | Security Mgt | SS | Bukit Batok |
| Pan Pacific Singapore | South | In-House | Security Mgt | SSO | Hougang |
